T-Mobile USA 401(k) plan

T-Mobile USA, Inc., Bellevue, WA. EIN 91-1983600. Annual reports 2009–2024. Also filed as T-Mobile US, Inc.

T-Mobile USA, Inc. has one active retirement plan on file, the T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust, with 95,644 participants and $9.1 billion in assets in 2024. Fidelity has been its recordkeeper since 2014. No traditional pension plan appears in T-Mobile USA's filings since 2009.

Active plans: 1
Participants: 95,644
Plan assets: $9.1 billion
401(k) recordkeeper: Fidelity
Plans on file: 1
Industry: Information and media

The plan

T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust

401(k)Active

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 001Employer EIN 91-1983600
Participants (2024): 95,644
Net assets (2024): $9.1 billion
Recordkeeper: FidelityEarlier: T. Rowe Price (2011–2013), Caribbean Pension Consultants (2010)
Plan administrator: T-Mobile USA, Inc.
12920 Southeast 38TH Street
Bellevue, WA 98006
(425) 383-4000As filed for 2024
In effect since: January 1, 2000

Plans merged into this one: Sprint 401(k) Plan (2020).

Earlier plan names: T-Mobile Puerto Rico 1165E Plan; T-Mobile USA, Inc. 401(k) Retirement Savings Plan; T-Mobile Puerto Rico 1165(E) Plan; T-Mobile USA, Inc. 401(k) Retirement Savings Plan and Trust.

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	95,644	$9.1 billion	Fidelity
2023	96,694	$8.3 billion	Fidelity
2022	99,687	$7.3 billion	Fidelity
2021	100,294	$9.0 billion	Fidelity
2020	103,385	$7.8 billion	Fidelity
2019	61,895	$3.4 billion	Fidelity
2018	60,769	$2.5 billion	Fidelity
2017	59,810	$2.5 billion	Fidelity
2016	59,016	$2.0 billion	Fidelity
2015	58,232	$1.7 billion	Fidelity
2014	55,656	$1.6 billion	Fidelity
2013	46,626	$1.3 billion	T. Rowe Price
2012	635	$12.5 million	T. Rowe Price
2011	50,763	$932 million	T. Rowe Price
2010	568	$9.4 million	Caribbean Pension Consultants
2009	524	$7.8 million	not listed

Plans that moved to another employer

Plan	Now sponsored by	Since
T-Mobile Puerto Rico 1165(E) Plan	T-Mobile Puerto Rico LLC	2014

These plans once filed under T-Mobile USA's tax ID and are now filed by another employer, usually after a sale or spin-off. Accounts moved with them.

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((425) 383-4000). That number was filed for 2024; ask for the benefits or retirement plan office.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

The plan

T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust

Plans that moved to another employer

If you had money in one of these plans

What these numbers are

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